Stakeholders of PPP projects may induce opportunistic behaviors in long-term cooperation. Existing studies emphasized the inhibitory effect of trust on opportunistic behaviors, but most of them simplified the trust relationship into a two-subject perspective. From the perspective of social network analysis, this research constructs a network-level trust relationship between the stakeholders of PPP projects. The index analysis of the trust network shows that the PPP project stakeholders have obvious centrality and there are structural holes in the networks. From the perspective of the stakeholder alliance, different forms of alliances differ in the degree, betweenness, and closeness centrality of the trust network. On this basis, the analysis results of different trust network indicators match the corresponding preventive measures of opportunistic behavior, and this research provides comprehensive suggestions for project management.

中文翻译：

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PPP项目中的机会行为治理：基于信任网络的分析

PPP项目的利益相关者可能会在长期合作中诱发机会主义行为。现有研究强调信任对机会主义行为的抑制作用，但大多数研究将信任关系简化为两个主体的观点。从社会网络分析的角度来看，本研究构建了PPP项目利益相关者之间的网络级信任关系。信任网络的指标分析表明，PPP项目的利益相关者具有明显的中心性，网络中存在结构性漏洞。从利益相关者联盟的角度来看，不同形式的联盟在信任网络的程度，中间性和紧密性中心性方面有所不同。在此基础上，